OK, having real problems purging out the biguinide, Drained it last week, refilled it, got rid of the old filter. After it refilled, added the jet cleaner, letting it run for a couple hours. Drained it, refilled, added new filter, balanced alkalinity, PH and hardness. It looked great, added the dichlor, the water turned green, cloudy and gunk formed on the water line. Drained it out, soaked the filter overnight in in filter cleaner. Hosed the filter off and let it dry.
So today, 5 days later, I spent over an hour with a very powerful shop vacuum, sucked out all the jets. I could still hear some water in the pipes at the bottom, but could not get all of it to come out.
We refilled it, added the filter, balanced the Alkalinity and PH, hardness. Ran the jets, but not the blower, the water looked good for a couple hours, but later had a slight greenish tint, but clear.
Added the dichlor and it turned quite green, but clear, no gunk. NOW WHAT? Is it safe this color? We do have a lot of iron in our water but we filter it (not softened, just filtered-it is well water).
Please help.